ConTeXt - XML: Using ConTeXt to format XML, in particular TeXML. A nice tutorial for learning ConTeXt itself as well.
ConTeXt and pdfTeX Beginners Help Page: Tips and techniques for using ConTeXt, with many font examples.
ConTeXt Development Portal: Bugs and feature requests collector.
ConTeXt Hacks: Font-related articles by Adam Lindsay.
ConTeXt Revisions: Old ConTeXt releases as complete .zip files and in SVN repository.
CONTEXT User Meeting: Will take place in Epen, the Netherlands, on 24th-25th March 2007. Includes programme and location details as well as a registration form.
ConTeXt Wiki: Includes documentation, tips and tricks, links, release notes, feature requests and FAQ.
DocBook In ConTeXt: How to produce a typeset version of a Docbook XML file.
DocBook to LaTeX/ConTeXt Publishing: A program and user manual for converting DocBook to LaTeX or ConTeXt.
Etexshow: Browser for ConTeXt commands (texshow) for Emacs.
fiëé TEXnique: The section "for typographers" offers files for supporting the usage of many free fonts: metrics, typescripts and the font files themselves. General ConTeXt documentation and examples (mostly in German) are also available.
NTG ConTeXt Mailing List: Subscribe and browse the mailing list archives.
Pragma ADE: The official website of the company where ConTeXt was developed by Hans Hagen. Support, documentation, and downloads for ConTeXt, PPCHTeX and pdfTeX.
Table and flowchart generator: Generates ConTeXt code for tables and flowcharts using JavaScript.
TeX and ConTeXt: Information on converting from LaTeX to ConTeXt and download of context.el - a ConTeXt Emacs major-mode.